Senior Software Engineer – Ad Tech (Reliability-First, Wrapper & Bidding)

Role Overview

This is not a typical engineering role.

You will work directly on revenue-generating systems—owning and optimizing the mechanics of how auctions run, how demand competes, and how publishers monetize their inventory.

You’ll be hands-on with header bidding (Prebid.js), Google Ad Manager, identity frameworks, and auction dynamics—building, testing, and optimizing systems that operate in real time at scale.

What You’ll Own

• Header bidding wrapper performance (Prebid.js): configuration, optimization, and upgrades
• Auction mechanics: bidder setup, floors, price granularity, timeout tuning
• GAM integrations: GPT, line item strategy, key-values, and yield alignment
• Identity & signal enrichment: userId modules, consent frameworks, ID-less strategies
• Auction performance: latency, bid density, win rates, and revenue outcomes

Key Responsibilities

• Build, optimize, and maintain our header bidding infrastructure (Prebid.js)
• Configure and tune bidders, adapters, floors, and auction settings for performance
• Diagnose and resolve revenue-impacting issues (bid drops, discrepancies, low competition)
• Analyze and optimize auction behavior (timeouts, bid response rates, latency)
• Run structured A/B tests across bidders, formats, and configurations
• Integrate and manage identity solutions (userId modules, signal enrichment, consent signals)
• Work directly with SSPs, exchanges, and demand partners to troubleshoot and improve performance
• Support GAM strategy implementation (line items, key-values, creative execution)
• Contribute to wrapper upgrades, new feature rollouts, and testing frameworks
• Build tools, scripts, or workflows to improve debugging, monitoring, and reporting

Required Skills & Experience

• 3–6 years of experience in software engineering (ad tech strongly preferred)
• Strong proficiency in JavaScript (must-have)
• Experience with Prebid.js or header bidding frameworks
• Working knowledge of Google Ad Manager (GAM) and GPT
• Deep understanding of browser behavior, async execution, and network requests
• Strong debugging skills across browser, network, and system layers
• Experience working with APIs and real-time systems

Preferred / Bonus

• Understanding of OpenRTB, auction dynamics, and bidstream mechanics
• Experience with identity frameworks (userId modules, ID-less, signal enrichment)
• Familiarity with IAB standards (TCF, privacy frameworks)
• Experience with Node.js or backend services
• Experience with performance optimization (latency, Core Web Vitals)
• Exposure to analytics, logging, or data pipelines